I was training a young controller once.. and he kept calling out a primary
return as traffic.. slow moving south bound.. altitude unknown.. but I was
seeing more than one return on occasion..

So.. we asked the next pilot going up the airway if he could spot the
traffic... (clue, airway followed river valley north to south).. sure enough
the pilot reported a beautiful V formation of Ducks.. heading south for the
winter.. about 2000ft below his cruising altitude..

Water in the ducks bellies reflect the radar..

BT

"Charles Yeates" wrote in message
...
BTIZ wrote:

It could be your local Halifax controllers are not trying, have to many
filters turned on.. or are just not experienced in radar operation.


It is the filter settings -- they don't want to see birds {:))